First, What Are We Talking About?
Let’s demystify the jargon. Index funds and Exchange-Traded Funds (ETFs) are both types of 'passive' investments. Instead of paying a fund manager to actively pick and choose stocks in an attempt to beat the market, these funds simply aim to replicate
the performance of a market index, like the Nifty 50 or Sensex. If the Nifty 50 goes up by 10%, your Nifty 50 index fund or ETF will deliver a nearly identical return. The main difference between them is how they trade: index funds are bought and sold like traditional mutual funds at the end-of-day price, while ETFs trade like stocks on an exchange throughout the day.
The Powerful Allure of Lower Costs
Perhaps the most compelling reason for the shift is simple math. Actively managed funds in India can charge an expense ratio (an annual fee) of 1% to 2%. In contrast, a passive index fund might charge as little as 0.1% to 0.2%. This might seem like a small difference, but over an investment horizon of 15 or 20 years, that seemingly tiny gap can compound into a significant amount, potentially adding lakhs to an investor's final corpus. A 2025 survey by Motilal Oswal Mutual Fund found that low cost was the top reason cited by 54% of investors for choosing passive funds. This growing cost-consciousness reflects a maturing investor base that is paying closer attention to what they are getting in return for the fees they pay.
The Active vs. Passive Performance Debate
For years, the promise of active funds was that a skilled manager could deliver returns that beat the market index. However, data increasingly shows this is harder than it sounds, especially in the large-cap space where information on blue-chip companies is widely available. While performance can vary wildly depending on the timeframe and category, some studies show that over long periods like 10 years, a large majority of active large-cap funds have failed to outperform their benchmarks. One study ending in June 2026 noted that while 87.9% of active large-cap funds beat their passive peers over one year, that success rate plummeted to just 25.8% over a decade. As investors become more aware of this, many are opting for the predictability of market-linked returns rather than paying a premium for uncertain outperformance.
Technology and Accessibility as Game Changers
The post-2020 surge in new retail investors, many of them young and tech-savvy, has been a major catalyst. The proliferation of user-friendly mobile trading apps and fintech platforms has made investing more accessible than ever. These platforms prominently feature index funds and ETFs, giving them unprecedented visibility. Concepts like passive investing are now explained in simple terms across social media and financial content platforms, educating a new generation of investors. The ease of starting a Systematic Investment Plan (SIP) with as little as ₹500 has also made index funds a go-to choice for beginners.
Regulatory Nudges and Growing Diversity
The regulatory environment, guided by the Securities and Exchange Board of India (SEBI), has also become more supportive of passive investing. A key 2022 circular created a dedicated regulatory track for passive funds, setting clear norms on transparency and tracking error—the measure of how closely a fund follows its index. This has made it easier to launch passive products, leading to a massive expansion in choice. Investors are no longer limited to just the Nifty 50. The market now offers hundreds of index funds and ETFs tracking everything from mid-cap and small-cap indices to specific sectors, themes, debt instruments, and even international markets.
